Home / 127,267.20-190,900.80-115,603.20

Finding the Fourth Proportional to 127,267.20, 190,900.80 and 115,603.20

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Solution

The fourth proportional to 127,267.20, 190,900.80 and 115,603.20 is: 173,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,267.20 : 190,900.80 = 115,603.20 : x
  2. Step 2: Convert to fraction form
    127,267.20/190,900.80 = 115,603.20/x
  3. Step 3: Cross multiply
    127,267.20x = 190,900.80 × 115,603.20
  4. Step 4: Simplify right side
    127,267.20x = 22,068,743,362.56
  5. Step 5: Solve for x
    x = 22,068,743,362.56/127,267.20
  6. Step 6: Final answer
    x = 173,404.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.